;;; rfc2104.el --- RFC2104 Hashed Message Authentication Codes
-;; Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
+
+;; Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004,
+;; 2005 Free Software Foundation, Inc.
;; Author: Simon Josefsson <jas@pdc.kth.se>
;; Keywords: mail
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; 1999-10-23 included in pgnus
;;; 2000-08-15 `rfc2104-hexstring-to-bitstring'
;;; 2000-05-12 added sha-1 example, added test case reference
-
+
+;;; Code:
+
(eval-when-compile (require 'cl))
;; Magic character for inner HMAC round. 0x36 == 54 == '6'
(defconst rfc2104-zero ?\x00)
;; Alist for converting hex to decimal.
-(defconst rfc2104-hex-alist
+(defconst rfc2104-hex-alist
'((?0 . 0) (?a . 10) (?A . 10)
(?1 . 1) (?b . 11) (?B . 11)
(?2 . 2) (?c . 12) (?C . 12)
(defun rfc2104-hash (hash block-length hash-length key text)
(let* (;; if key is longer than B, reset it to HASH(key)
- (key (if (> (length key) block-length)
+ (key (if (> (length key) block-length)
(funcall hash key) key))
(k_ipad (append key nil))
(k_opad (append key nil)))